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Finding the Fourth Proportional to 13,483.25, 20,228.87 and 6,914.05

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Solution

The fourth proportional to 13,483.25, 20,228.87 and 6,914.05 is: 10,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.25 : 20,228.87 = 6,914.05 : x
  2. Step 2: Convert to fraction form
    13,483.25/20,228.87 = 6,914.05/x
  3. Step 3: Cross multiply
    13,483.25x = 20,228.87 × 6,914.05
  4. Step 4: Simplify right side
    13,483.25x = 139,863,418.62
  5. Step 5: Solve for x
    x = 139,863,418.62/13,483.25
  6. Step 6: Final answer
    x = 10,373.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.